Resined carburettor at long standstill

Hello, our T2 Joker motorhome built in 1982 is only registered in the 4 summer months and stands 8 months in winter unmoved. Now the carburetor is resinated and does not do anymore. If I have it cleaned or replaced, how can I prevent resination in the future? Is the only way to prevent resination to drive the bus regularly even in winter? (12 months of meltdugn costs of course the triple)